The EcoFlow Smart Meter is a three-phase smart electric meter designed for installation on a DIN rail. Compact (90 × 66 × 36 mm, antenna included), it enables precise real-time monitoring of energy consumption thanks to its Wi-Fi and Bluetooth connectivity. This device measures accumulated energy, voltage, current, and power factor, with a data resolution of one minute, stored for at least 60 days in non-volatile memory. Easy to install, it is compatible with single-phase and three-phase networks. It features a reset button and several LED indicators (power, Wi-Fi, RS485) to facilitate diagnostics and monitor the system's status. In case of weak signal, an extension antenna is provided to improve reception. The Smart Meter complies with European standards (CE, RoHS) and offers IP30 protection. It operates under extreme conditions (−25°C to 70°C, humidity 5–95%, altitude ≤ 3000 m). It is recommended to use it with certified current transformers and cables with enhanced thermal insulation (PVCT 105°C). The device is intended exclusively for indoor use and should be installed by a qualified professional. It comes with an EcoFlow mobile app for intuitive remote management. At the end of its life, it must be disposed of in accordance with WEEE directives.